Kakuro Puzzle offers daily, regular, and unlimited number crosswords, alongside rules and clue-sum instructions.
Sudoku XV
Sudoku XV adds rules based on the values of adjacent squares to a number placement puzzle.
About Sudoku XV
Sudoku XV is a Sudoku variant that adds constraints based on the sums of neighboring squares. Symbols between qualifying pairs in the puzzle limit which digits can be placed side by side.
Pricing is not clearly stated.
Key features
- Adjacent squares totaling 5 are always marked with a V between them.
- Adjacent squares totaling 10 are always marked with an X between them.
- Digits 6 and 4 can be placed next to each other only when an X is between them.
Sudoku XV at a glance
- Website
- keeri.place/sudoku-xv
- Category
- Gaming › Browser Puzzle Games
- Type
- Website
- Pricing
- Not confirmed. Check the site
- Platforms
- Web
- Details verified
- Oct 22, 2026 · Official source
- Open source
- Not stated
- Last checked
- Oct 5, 2026 · Online when checked
- Listed
- Oct 5, 2026
Sudoku XV alternatives
Tools and sites you could use instead, ranked by how closely they match.
Play Blockle, a daily puzzle game that combines word guessing and block placement.
Nerdle offers a daily numbers puzzle with six guesses and classic, mini, speed, and pro modes.
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